MengYX
3 years ago
committed by
GitHub
commit
9390b45207
@ -0,0 +1,5 @@
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package qmc
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type streamCipher interface {
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Decrypt(buf []byte, offset int)
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}
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@ -0,0 +1,39 @@
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package qmc
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import "errors"
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type mapCipher struct {
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key []byte
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box []byte
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size int
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}
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func NewMapCipher(key []byte) (*mapCipher, error) {
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if len(key) == 0 {
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return nil, errors.New("qmc/cipher_map: invalid key size")
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}
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c := &mapCipher{key: key, size: len(key)}
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c.box = make([]byte, c.size)
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return c, nil
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}
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func (c *mapCipher) getMask(offset int) byte {
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if offset > 0x7FFF {
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offset %= 0x7FFF
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}
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idx := (offset*offset + 71214) % c.size
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return c.rotate(c.key[idx], byte(idx)&0x7)
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}
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func (c *mapCipher) rotate(value byte, bits byte) byte {
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rotate := (bits + 4) % 8
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left := value << rotate
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right := value >> rotate
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return left | right
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}
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func (c *mapCipher) Decrypt(buf []byte, offset int) {
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for i := 0; i < len(buf); i++ {
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buf[i] ^= c.getMask(offset + i)
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}
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}
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@ -0,0 +1,53 @@
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package qmc
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import (
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"fmt"
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"os"
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"reflect"
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"testing"
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)
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func loadTestDataMapCipher(name string) ([]byte, []byte, []byte, error) {
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key, err := os.ReadFile(fmt.Sprintf("./testdata/%s_key.bin", name))
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if err != nil {
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return nil, nil, nil, err
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}
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raw, err := os.ReadFile(fmt.Sprintf("./testdata/%s_raw.bin", name))
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if err != nil {
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return nil, nil, nil, err
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}
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target, err := os.ReadFile(fmt.Sprintf("./testdata/%s_target.bin", name))
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if err != nil {
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return nil, nil, nil, err
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}
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return key, raw, target, nil
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}
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func Test_mapCipher_Decrypt(t *testing.T) {
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tests := []struct {
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name string
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wantErr bool
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}{
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{"mflac_map", false},
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{"mgg_map", false},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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key, raw, target, err := loadTestDataMapCipher(tt.name)
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if err != nil {
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t.Fatalf("load testing data failed: %s", err)
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}
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c, err := NewMapCipher(key)
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if err != nil {
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t.Errorf("init mapCipher failed: %s", err)
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return
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}
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c.Decrypt(raw, 0)
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if !reflect.DeepEqual(raw, target) {
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t.Error("overall")
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}
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})
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}
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}
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@ -0,0 +1,133 @@
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package qmc
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import (
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"errors"
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)
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// A rc4Cipher is an instance of RC4 using a particular key.
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type rc4Cipher struct {
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box []byte
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key []byte
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hash uint32
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boxTmp []byte
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}
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// NewRC4Cipher creates and returns a new rc4Cipher. The key argument should be the
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// RC4 key, at least 1 byte and at most 256 bytes.
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func NewRC4Cipher(key []byte) (*rc4Cipher, error) {
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n := len(key)
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if n == 0 {
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return nil, errors.New("qmc/cipher_rc4: invalid key size")
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}
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var c = rc4Cipher{key: key}
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c.box = make([]byte, n)
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c.boxTmp = make([]byte, n)
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for i := 0; i < n; i++ {
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c.box[i] = byte(i)
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}
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var j = 0
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for i := 0; i < n; i++ {
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j = (j + int(c.box[i]) + int(key[i%n])) % n
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c.box[i], c.box[j] = c.box[j], c.box[i]
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}
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c.getHashBase()
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return &c, nil
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}
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func (c *rc4Cipher) getHashBase() {
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c.hash = 1
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for i := 0; i < len(c.key); i++ {
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v := uint32(c.key[i])
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if v == 0 {
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continue
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}
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nextHash := c.hash * v
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if nextHash == 0 || nextHash <= c.hash {
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break
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}
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c.hash = nextHash
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}
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}
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const rc4SegmentSize = 5120
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func (c *rc4Cipher) Decrypt(src []byte, offset int) {
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toProcess := len(src)
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processed := 0
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markProcess := func(p int) (finished bool) {
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offset += p
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toProcess -= p
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processed += p
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return toProcess == 0
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}
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if offset < 128 {
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blockSize := toProcess
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if blockSize > 128-offset {
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blockSize = 128 - offset
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}
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c.encFirstSegment(src[:blockSize], offset)
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if markProcess(blockSize) {
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return
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}
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}
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if offset%rc4SegmentSize != 0 {
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blockSize := toProcess
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if blockSize > rc4SegmentSize-offset%rc4SegmentSize {
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blockSize = rc4SegmentSize - offset%rc4SegmentSize
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}
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k := src[processed : processed+blockSize]
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c.encASegment(k, offset)
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if markProcess(blockSize) {
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return
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}
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}
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for toProcess > rc4SegmentSize {
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c.encASegment(src[processed:processed+rc4SegmentSize], offset)
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markProcess(rc4SegmentSize)
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}
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if toProcess > 0 {
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c.encASegment(src[processed:], offset)
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}
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}
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func (c *rc4Cipher) encFirstSegment(buf []byte, offset int) {
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n := len(c.box)
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for i := 0; i < len(buf); i++ {
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idx1 := offset + i
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segmentID := int(c.key[idx1%n])
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idx2 := int(float64(c.hash) / float64((idx1+1)*segmentID) * 100.0)
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buf[i] ^= c.key[idx2%n]
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}
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}
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func (c *rc4Cipher) encASegment(buf []byte, offset int) {
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n := len(c.box)
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copy(c.boxTmp, c.box)
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segmentID := (offset / rc4SegmentSize) & 0x1FF
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if n <= segmentID {
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return
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}
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idx2 := int64(float64(c.hash) /
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float64((offset/rc4SegmentSize+1)*int(c.key[segmentID])) *
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100.0)
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skipLen := int((idx2 & 0x1FF) + int64(offset%rc4SegmentSize))
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j, k := 0, 0
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for i := -skipLen; i < len(buf); i++ {
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j = (j + 1) % n
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k = (int(c.boxTmp[j]) + k) % n
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c.boxTmp[j], c.boxTmp[k] = c.boxTmp[k], c.boxTmp[j]
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if i >= 0 {
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buf[i] ^= c.boxTmp[int(c.boxTmp[j])+int(c.boxTmp[k])%n]
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}
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}
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}
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@ -0,0 +1,90 @@
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package qmc
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import (
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"os"
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"reflect"
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"testing"
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)
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func loadTestRC4CipherData() ([]byte, []byte, []byte, error) {
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key, err := os.ReadFile("./testdata/mflac0_rc4_key.bin")
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if err != nil {
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return nil, nil, nil, err
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}
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raw, err := os.ReadFile("./testdata/mflac0_rc4_raw.bin")
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if err != nil {
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return nil, nil, nil, err
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}
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target, err := os.ReadFile("./testdata/mflac0_rc4_target.bin")
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if err != nil {
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return nil, nil, nil, err
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}
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return key, raw, target, nil
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}
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func Test_rc4Cipher_Decrypt(t *testing.T) {
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key, raw, target, err := loadTestRC4CipherData()
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if err != nil {
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t.Fatalf("load testing data failed: %s", err)
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}
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t.Run("overall", func(t *testing.T) {
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c, err := NewRC4Cipher(key)
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if err != nil {
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t.Errorf("init rc4Cipher failed: %s", err)
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return
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}
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c.Decrypt(raw, 0)
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if !reflect.DeepEqual(raw, target) {
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t.Error("overall")
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}
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})
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}
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func Test_rc4Cipher_encFirstSegment(t *testing.T) {
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key, raw, target, err := loadTestRC4CipherData()
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if err != nil {
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t.Fatalf("load testing data failed: %s", err)
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}
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t.Run("first-block(0~128)", func(t *testing.T) {
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c, err := NewRC4Cipher(key)
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if err != nil {
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t.Errorf("init rc4Cipher failed: %s", err)
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return
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}
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c.Decrypt(raw[:128], 0)
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if !reflect.DeepEqual(raw[:128], target[:128]) {
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t.Error("first-block(0~128)")
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}
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})
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}
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func Test_rc4Cipher_encASegment(t *testing.T) {
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key, raw, target, err := loadTestRC4CipherData()
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if err != nil {
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t.Fatalf("load testing data failed: %s", err)
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}
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t.Run("align-block(128~5120)", func(t *testing.T) {
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c, err := NewRC4Cipher(key)
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if err != nil {
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t.Errorf("init rc4Cipher failed: %s", err)
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return
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}
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c.Decrypt(raw[128:5120], 128)
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if !reflect.DeepEqual(raw[128:5120], target[128:5120]) {
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t.Error("align-block(128~5120)")
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}
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})
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t.Run("simple-block(5120~10240)", func(t *testing.T) {
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c, err := NewRC4Cipher(key)
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if err != nil {
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t.Errorf("init rc4Cipher failed: %s", err)
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return
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}
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c.Decrypt(raw[5120:10240], 5120)
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if !reflect.DeepEqual(raw[5120:10240], target[5120:10240]) {
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t.Error("align-block(128~5120)")
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}
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})
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}
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@ -0,0 +1,57 @@
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package qmc
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func NewStaticCipher() *staticCipher {
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return &defaultStaticCipher
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}
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var defaultStaticCipher = staticCipher{}
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type staticCipher struct{}
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func (c *staticCipher) Decrypt(buf []byte, offset int) {
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for i := 0; i < len(buf); i++ {
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buf[i] ^= c.getMask(offset + i)
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}
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}
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func (c *staticCipher) getMask(offset int) byte {
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if offset > 0x7FFF {
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offset %= 0x7FFF
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}
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idx := (offset*offset + 27) & 0xff
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return staticCipherBox[idx]
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}
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var staticCipherBox = [...]byte{
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0x77, 0x48, 0x32, 0x73, 0xDE, 0xF2, 0xC0, 0xC8, //0x00
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0x95, 0xEC, 0x30, 0xB2, 0x51, 0xC3, 0xE1, 0xA0, //0x08
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0x9E, 0xE6, 0x9D, 0xCF, 0xFA, 0x7F, 0x14, 0xD1, //0x10
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0xCE, 0xB8, 0xDC, 0xC3, 0x4A, 0x67, 0x93, 0xD6, //0x18
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0x28, 0xC2, 0x91, 0x70, 0xCA, 0x8D, 0xA2, 0xA4, //0x20
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0xF0, 0x08, 0x61, 0x90, 0x7E, 0x6F, 0xA2, 0xE0, //0x28
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0xEB, 0xAE, 0x3E, 0xB6, 0x67, 0xC7, 0x92, 0xF4, //0x30
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0x91, 0xB5, 0xF6, 0x6C, 0x5E, 0x84, 0x40, 0xF7, //0x38
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0xF3, 0x1B, 0x02, 0x7F, 0xD5, 0xAB, 0x41, 0x89, //0x40
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0x28, 0xF4, 0x25, 0xCC, 0x52, 0x11, 0xAD, 0x43, //0x48
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0x68, 0xA6, 0x41, 0x8B, 0x84, 0xB5, 0xFF, 0x2C, //0x50
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0x92, 0x4A, 0x26, 0xD8, 0x47, 0x6A, 0x7C, 0x95, //0x58
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0x61, 0xCC, 0xE6, 0xCB, 0xBB, 0x3F, 0x47, 0x58, //0x60
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0x89, 0x75, 0xC3, 0x75, 0xA1, 0xD9, 0xAF, 0xCC, //0x68
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0x08, 0x73, 0x17, 0xDC, 0xAA, 0x9A, 0xA2, 0x16, //0x70
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0x41, 0xD8, 0xA2, 0x06, 0xC6, 0x8B, 0xFC, 0x66, //0x78
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0x34, 0x9F, 0xCF, 0x18, 0x23, 0xA0, 0x0A, 0x74, //0x80
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0xE7, 0x2B, 0x27, 0x70, 0x92, 0xE9, 0xAF, 0x37, //0x88
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0xE6, 0x8C, 0xA7, 0xBC, 0x62, 0x65, 0x9C, 0xC2, //0x90
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0x08, 0xC9, 0x88, 0xB3, 0xF3, 0x43, 0xAC, 0x74, //0x98
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0x2C, 0x0F, 0xD4, 0xAF, 0xA1, 0xC3, 0x01, 0x64, //0xA0
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0x95, 0x4E, 0x48, 0x9F, 0xF4, 0x35, 0x78, 0x95, //0xA8
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0x7A, 0x39, 0xD6, 0x6A, 0xA0, 0x6D, 0x40, 0xE8, //0xB0
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0x4F, 0xA8, 0xEF, 0x11, 0x1D, 0xF3, 0x1B, 0x3F, //0xB8
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0x3F, 0x07, 0xDD, 0x6F, 0x5B, 0x19, 0x30, 0x19, //0xC0
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0xFB, 0xEF, 0x0E, 0x37, 0xF0, 0x0E, 0xCD, 0x16, //0xC8
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0x49, 0xFE, 0x53, 0x47, 0x13, 0x1A, 0xBD, 0xA4, //0xD0
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0xF1, 0x40, 0x19, 0x60, 0x0E, 0xED, 0x68, 0x09, //0xD8
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0x06, 0x5F, 0x4D, 0xCF, 0x3D, 0x1A, 0xFE, 0x20, //0xE0
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0x77, 0xE4, 0xD9, 0xDA, 0xF9, 0xA4, 0x2B, 0x76, //0xE8
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0x1C, 0x71, 0xDB, 0x00, 0xBC, 0xFD, 0x0C, 0x6C, //0xF0
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0xA5, 0x47, 0xF7, 0xF6, 0x00, 0x79, 0x4A, 0x11, //0xF8
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}
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@ -1,70 +0,0 @@
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package qmc
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var oggPublicHeader1 = []byte{
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0x4f, 0x67, 0x67, 0x53, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
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0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x1e, 0x01, 0x76, 0x6f, 0x72,
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0x62, 0x69, 0x73, 0x00, 0x00, 0x00, 0x00, 0x02, 0x44, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0xee, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0x01, 0x4f, 0x67, 0x67, 0x53, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00,
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0xff, 0xff, 0xff, 0xff}
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var oggPublicHeader2 = []byte{
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0x03, 0x76, 0x6f, 0x72, 0x62, 0x69, 0x73, 0x2c, 0x00, 0x00, 0x00, 0x58, 0x69, 0x70, 0x68, 0x2e,
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0x4f, 0x72, 0x67, 0x20, 0x6c, 0x69, 0x62, 0x56, 0x6f, 0x72, 0x62, 0x69, 0x73, 0x20, 0x49, 0x20,
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0x32, 0x30, 0x31, 0x35, 0x30, 0x31, 0x30, 0x35, 0x20, 0x28, 0xe2, 0x9b, 0x84, 0xe2, 0x9b, 0x84,
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0xe2, 0x9b, 0x84, 0xe2, 0x9b, 0x84, 0x29, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x54,
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0x49, 0x54, 0x4c, 0x45, 0x3d}
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var oggPublicConfidence1 = []uint{
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9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0, 0,
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0, 0, 9, 9, 9, 9, 0, 0, 0, 0, 9, 9, 9, 9, 9, 9,
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9, 9, 9, 9, 9, 9, 9, 6, 3, 3, 3, 3, 6, 6, 6, 6,
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3, 3, 3, 3, 6, 6, 6, 6, 6, 9, 9, 9, 9, 9, 9, 9,
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9, 9, 9, 9, 9, 9, 9, 9, 0, 0, 0, 0, 9, 9, 9, 9,
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0, 0, 0, 0}
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|
||||
var oggPublicConfidence2 = []uint{
|
||||
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
|
||||
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
|
||||
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
|
||||
3, 3, 3, 3, 3, 3, 3, 0, 1, 3, 3, 0, 1, 3, 3, 3,
|
||||
3, 3, 3, 3, 3}
|
||||
|
||||
var (
|
||||
defaultKey256Mask44 = []byte{
|
||||
0xde, 0x51, 0xfa, 0xc3, 0x4a, 0xd6, 0xca, 0x90,
|
||||
0x7e, 0x67, 0x5e, 0xf7, 0xd5, 0x52, 0x84, 0xd8,
|
||||
0x47, 0x95, 0xbb, 0xa1, 0xaa, 0xc6, 0x66, 0x23,
|
||||
0x92, 0x62, 0xf3, 0x74, 0xa1, 0x9f, 0xf4, 0xa0,
|
||||
0x1d, 0x3f, 0x5b, 0xf0, 0x13, 0x0e, 0x09, 0x3d,
|
||||
0xf9, 0xbc, 0x00, 0x11}
|
||||
)
|
||||
var key256MappingAll [][]int //[idx256][idx128]idx44
|
||||
var key256Mapping128to44 map[int]int
|
||||
|
||||
func init() {
|
||||
{ // init all mapping
|
||||
key256MappingAll = make([][]int, 256)
|
||||
for i := 0; i < 128; i++ {
|
||||
realIdx := (i*i + 27) % 256
|
||||
if key256MappingAll[realIdx] == nil {
|
||||
key256MappingAll[realIdx] = []int{i}
|
||||
} else {
|
||||
key256MappingAll[realIdx] = append(key256MappingAll[realIdx], i)
|
||||
}
|
||||
}
|
||||
}
|
||||
{ // init
|
||||
key256Mapping128to44 = make(map[int]int, 128)
|
||||
idx44 := 0
|
||||
for _, all128 := range key256MappingAll {
|
||||
if all128 != nil {
|
||||
for _, _i128 := range all128 {
|
||||
key256Mapping128to44[_i128] = idx44
|
||||
}
|
||||
idx44++
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,115 @@
|
||||
package qmc
|
||||
|
||||
import (
|
||||
"encoding/base64"
|
||||
"errors"
|
||||
"math"
|
||||
|
||||
"golang.org/x/crypto/tea"
|
||||
)
|
||||
|
||||
func simpleMakeKey(salt byte, length int) []byte {
|
||||
keyBuf := make([]byte, length)
|
||||
for i := 0; i < length; i++ {
|
||||
tmp := math.Tan(float64(salt) + float64(i)*0.1)
|
||||
keyBuf[i] = byte(math.Abs(tmp) * 100.0)
|
||||
}
|
||||
return keyBuf
|
||||
}
|
||||
func DecryptKey(rawKey []byte) ([]byte, error) {
|
||||
rawKeyDec := make([]byte, base64.StdEncoding.DecodedLen(len(rawKey)))
|
||||
n, err := base64.StdEncoding.Decode(rawKeyDec, rawKey)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if n < 16 {
|
||||
return nil, errors.New("key length is too short")
|
||||
}
|
||||
rawKeyDec = rawKeyDec[:n]
|
||||
|
||||
simpleKey := simpleMakeKey(106, 8)
|
||||
teaKey := make([]byte, 16)
|
||||
for i := 0; i < 8; i++ {
|
||||
teaKey[i<<1] = simpleKey[i]
|
||||
teaKey[i<<1+1] = rawKeyDec[i]
|
||||
}
|
||||
|
||||
rs, err := decryptTencentTea(rawKeyDec[8:], teaKey)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return append(rawKeyDec[:8], rs...), nil
|
||||
}
|
||||
func decryptTencentTea(inBuf []byte, key []byte) ([]byte, error) {
|
||||
const saltLen = 2
|
||||
const zeroLen = 7
|
||||
if len(inBuf)%8 != 0 {
|
||||
return nil, errors.New("inBuf size not a multiple of the block size")
|
||||
}
|
||||
if len(inBuf) < 16 {
|
||||
return nil, errors.New("inBuf size too small")
|
||||
}
|
||||
|
||||
blk, err := tea.NewCipherWithRounds(key, 32)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
destBuf := make([]byte, 8)
|
||||
blk.Decrypt(destBuf, inBuf)
|
||||
padLen := int(destBuf[0] & 0x7)
|
||||
outLen := len(inBuf) - 1 - padLen - saltLen - zeroLen
|
||||
if padLen+saltLen != 8 {
|
||||
return nil, errors.New("invalid pad len")
|
||||
}
|
||||
out := make([]byte, outLen)
|
||||
|
||||
ivPrev := make([]byte, 8)
|
||||
ivCur := inBuf[:8]
|
||||
|
||||
inBufPos := 8
|
||||
|
||||
destIdx := 1 + padLen
|
||||
cryptBlock := func() {
|
||||
ivPrev = ivCur
|
||||
ivCur = inBuf[inBufPos : inBufPos+8]
|
||||
|
||||
xor8Bytes(destBuf, destBuf, inBuf[inBufPos:inBufPos+8])
|
||||
blk.Decrypt(destBuf, destBuf)
|
||||
|
||||
inBufPos += 8
|
||||
destIdx = 0
|
||||
}
|
||||
for i := 1; i <= saltLen; {
|
||||
if destIdx < 8 {
|
||||
destIdx++
|
||||
i++
|
||||
} else if destIdx == 8 {
|
||||
cryptBlock()
|
||||
}
|
||||
}
|
||||
|
||||
outPos := 0
|
||||
for outPos < outLen {
|
||||
if destIdx < 8 {
|
||||
out[outPos] = destBuf[destIdx] ^ ivPrev[destIdx]
|
||||
destIdx++
|
||||
outPos++
|
||||
} else if destIdx == 8 {
|
||||
cryptBlock()
|
||||
}
|
||||
}
|
||||
|
||||
for i := 1; i <= zeroLen; i++ {
|
||||
if destBuf[destIdx] != ivPrev[destIdx] {
|
||||
return nil, errors.New("zero check failed")
|
||||
}
|
||||
}
|
||||
|
||||
return out, nil
|
||||
}
|
||||
func xor8Bytes(dst, a, b []byte) {
|
||||
for i := 0; i < 8; i++ {
|
||||
dst[i] = a[i] ^ b[i]
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,56 @@
|
||||
package qmc
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
"reflect"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestSimpleMakeKey(t *testing.T) {
|
||||
expect := []byte{0x69, 0x56, 0x46, 0x38, 0x2b, 0x20, 0x15, 0x0b}
|
||||
t.Run("106,8", func(t *testing.T) {
|
||||
if got := simpleMakeKey(106, 8); !reflect.DeepEqual(got, expect) {
|
||||
t.Errorf("simpleMakeKey() = %v, want %v", got, expect)
|
||||
}
|
||||
})
|
||||
}
|
||||
func loadDecryptKeyData(name string) ([]byte, []byte, error) {
|
||||
keyRaw, err := os.ReadFile(fmt.Sprintf("./testdata/%s_key_raw.bin", name))
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
keyDec, err := os.ReadFile(fmt.Sprintf("./testdata/%s_key.bin", name))
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
return keyRaw, keyDec, nil
|
||||
}
|
||||
func TestDecryptKey(t *testing.T) {
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
filename string
|
||||
wantErr bool
|
||||
}{
|
||||
{"mflac0_rc4(512)", "mflac0_rc4", false},
|
||||
{"mflac_map(256)", "mflac_map", false},
|
||||
}
|
||||
for _, tt := range tests {
|
||||
raw, want, err := loadDecryptKeyData(tt.filename)
|
||||
if err != nil {
|
||||
t.Fatalf("load test data failed: %s", err)
|
||||
}
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
got, err := DecryptKey(raw)
|
||||
if (err != nil) != tt.wantErr {
|
||||
t.Errorf("DecryptKey() error = %v, wantErr %v", err, tt.wantErr)
|
||||
return
|
||||
}
|
||||
if !reflect.DeepEqual(got, want) {
|
||||
t.Errorf("DecryptKey() got = %v..., want %v...",
|
||||
string(got[:32]), string(want[:32]))
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
@ -1,212 +0,0 @@
|
||||
package qmc
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"github.com/unlock-music/cli/algo/common"
|
||||
"github.com/unlock-music/cli/internal/logging"
|
||||
"go.uber.org/zap"
|
||||
)
|
||||
|
||||
var (
|
||||
ErrFailToMatchMask = errors.New("can not match at least one key")
|
||||
ErrTestDataLength = errors.New("invalid length of test file")
|
||||
ErrMaskLength128 = errors.New("incorrect mask length 128")
|
||||
ErrMaskLength44 = errors.New("incorrect mask length 44")
|
||||
ErrMaskDecode = errors.New("decode mask-128 to mask-58 failed")
|
||||
ErrDetectFlacMask = errors.New("can not detect mflac mask")
|
||||
ErrDetectMggMask = errors.New("can not detect mgg mask")
|
||||
)
|
||||
|
||||
type Key256Mask struct {
|
||||
matrix []byte // Mask 128
|
||||
}
|
||||
|
||||
func NewKey256FromMask128(mask128 []byte) (*Key256Mask, error) {
|
||||
if len(mask128) != 128 {
|
||||
return nil, ErrMaskLength128
|
||||
}
|
||||
q := &Key256Mask{matrix: mask128}
|
||||
return q, nil
|
||||
}
|
||||
|
||||
func NewKey256FromMask44(mask44 []byte) (*Key256Mask, error) {
|
||||
mask128, err := convertKey256Mask44to128(mask44)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
q := &Key256Mask{matrix: mask128}
|
||||
return q, nil
|
||||
}
|
||||
|
||||
func (q *Key256Mask) GetMatrix44() ([]byte, error) {
|
||||
if len(q.matrix) != 128 {
|
||||
return nil, ErrMaskLength128
|
||||
}
|
||||
matrix44 := make([]byte, 44)
|
||||
idx44 := 0
|
||||
for _, it256 := range key256MappingAll {
|
||||
if it256 != nil {
|
||||
it256Len := len(it256)
|
||||
for i := 1; i < it256Len; i++ {
|
||||
if q.matrix[it256[0]] != q.matrix[it256[i]] {
|
||||
return nil, ErrMaskDecode
|
||||
}
|
||||
}
|
||||
matrix44[idx44] = q.matrix[it256[0]]
|
||||
idx44++
|
||||
}
|
||||
}
|
||||
return matrix44, nil
|
||||
}
|
||||
|
||||
func (q *Key256Mask) Decrypt(data []byte) []byte {
|
||||
dst := make([]byte, len(data))
|
||||
index := -1
|
||||
maskIdx := -1
|
||||
for cur := 0; cur < len(data); cur++ {
|
||||
index++
|
||||
maskIdx++
|
||||
if index == 0x8000 || (index > 0x8000 && (index+1)%0x8000 == 0) {
|
||||
index++
|
||||
maskIdx++
|
||||
}
|
||||
if maskIdx >= 128 {
|
||||
maskIdx -= 128
|
||||
}
|
||||
dst[cur] = data[cur] ^ q.matrix[maskIdx]
|
||||
}
|
||||
return dst
|
||||
}
|
||||
|
||||
func convertKey256Mask44to128(mask44 []byte) ([]byte, error) {
|
||||
if len(mask44) != 44 {
|
||||
return nil, ErrMaskLength44
|
||||
}
|
||||
mask128 := make([]byte, 128)
|
||||
idx44 := 0
|
||||
for _, it256 := range key256MappingAll {
|
||||
if it256 != nil {
|
||||
for _, idx128 := range it256 {
|
||||
mask128[idx128] = mask44[idx44]
|
||||
}
|
||||
idx44++
|
||||
}
|
||||
}
|
||||
return mask128, nil
|
||||
}
|
||||
|
||||
func getDefaultMask() *Key256Mask {
|
||||
y, _ := NewKey256FromMask44(defaultKey256Mask44)
|
||||
return y
|
||||
}
|
||||
|
||||
func detectMflac256Mask(input []byte) (*Key256Mask, error) {
|
||||
var q *Key256Mask
|
||||
var rtErr = ErrDetectFlacMask
|
||||
|
||||
lenData := len(input)
|
||||
lenTest := 0x8000
|
||||
if lenData < 0x8000 {
|
||||
lenTest = lenData
|
||||
}
|
||||
|
||||
for blockIdx := 0; blockIdx < lenTest; blockIdx += 128 {
|
||||
var err error
|
||||
q, err = NewKey256FromMask128(input[blockIdx : blockIdx+128])
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
if common.SnifferFLAC(q.Decrypt(input[:4])) {
|
||||
rtErr = nil
|
||||
break
|
||||
}
|
||||
}
|
||||
return q, rtErr
|
||||
}
|
||||
|
||||
func detectMgg256Mask(input []byte) (*Key256Mask, error) {
|
||||
if len(input) < 0x100 {
|
||||
return nil, ErrTestDataLength
|
||||
}
|
||||
|
||||
matrixConf := make([]map[uint8]uint, 44) //meaning: [idx58][value]confidence
|
||||
for i := uint(0); i < 44; i++ {
|
||||
matrixConf[i] = make(map[uint8]uint)
|
||||
}
|
||||
|
||||
page2size := input[0x54] ^ input[0xC] ^ oggPublicHeader1[0xC]
|
||||
spHeader, spConf := generateOggFullHeader(int(page2size))
|
||||
lenTest := len(spHeader)
|
||||
|
||||
for idx128 := 0; idx128 < lenTest; idx128++ {
|
||||
confidence := spConf[idx128]
|
||||
if confidence > 0 {
|
||||
mask := input[idx128] ^ spHeader[idx128]
|
||||
|
||||
idx44 := key256Mapping128to44[idx128&0x7f] // equals: [idx128 % 128]
|
||||
if _, ok2 := matrixConf[idx44][mask]; ok2 {
|
||||
matrixConf[idx44][mask] += confidence
|
||||
} else {
|
||||
matrixConf[idx44][mask] = confidence
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
matrix := make([]uint8, 44)
|
||||
var err error
|
||||
for i := uint(0); i < 44; i++ {
|
||||
matrix[i], err = decideMgg256MaskItemConf(matrixConf[i])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
q, err := NewKey256FromMask44(matrix)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if common.SnifferOGG(q.Decrypt(input[:4])) {
|
||||
return q, nil
|
||||
}
|
||||
return nil, ErrDetectMggMask
|
||||
}
|
||||
|
||||
func generateOggFullHeader(pageSize int) ([]byte, []uint) {
|
||||
spec := make([]byte, pageSize+1)
|
||||
|
||||
spec[0], spec[1], spec[pageSize] = uint8(pageSize), 0xFF, 0xFF
|
||||
for i := 2; i < pageSize; i++ {
|
||||
spec[i] = 0xFF
|
||||
}
|
||||
specConf := make([]uint, pageSize+1)
|
||||
specConf[0], specConf[1], specConf[pageSize] = 6, 0, 0
|
||||
for i := 2; i < pageSize; i++ {
|
||||
specConf[i] = 4
|
||||
}
|
||||
allConf := append(oggPublicConfidence1, specConf...)
|
||||
allConf = append(allConf, oggPublicConfidence2...)
|
||||
|
||||
allHeader := bytes.Join(
|
||||
[][]byte{oggPublicHeader1, spec, oggPublicHeader2},
|
||||
[]byte{},
|
||||
)
|
||||
return allHeader, allConf
|
||||
}
|
||||
|
||||
func decideMgg256MaskItemConf(confidence map[uint8]uint) (uint8, error) {
|
||||
lenConf := len(confidence)
|
||||
if lenConf == 0 {
|
||||
return 0xff, ErrFailToMatchMask
|
||||
} else if lenConf > 1 {
|
||||
logging.Log().Warn("there are 2 potential value for the mask", zap.Any("confidence", confidence))
|
||||
}
|
||||
result := uint8(0)
|
||||
conf := uint(0)
|
||||
for idx, item := range confidence {
|
||||
if item > conf {
|
||||
result = idx
|
||||
conf = item
|
||||
}
|
||||
}
|
||||
return result, nil
|
||||
}
|
||||
@ -1,128 +1,263 @@
|
||||
package qmc
|
||||
|
||||
import (
|
||||
"encoding/base64"
|
||||
"bytes"
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"github.com/unlock-music/cli/algo/common"
|
||||
)
|
||||
"io"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
var (
|
||||
ErrQmcFileLength = errors.New("invalid qmc file length")
|
||||
ErrQmcKeyDecodeFailed = errors.New("base64 decode qmc key failed")
|
||||
ErrQmcKeyLength = errors.New("unexpected decoded qmc key length")
|
||||
"github.com/unlock-music/cli/algo/common"
|
||||
)
|
||||
|
||||
type Decoder struct {
|
||||
file []byte
|
||||
maskDetector func(encodedData []byte) (*Key256Mask, error)
|
||||
mask *Key256Mask
|
||||
audioExt string
|
||||
key []byte
|
||||
audio []byte
|
||||
}
|
||||
r io.ReadSeeker
|
||||
fileExt string
|
||||
|
||||
audioLen int
|
||||
decodedKey []byte
|
||||
cipher streamCipher
|
||||
offset int
|
||||
|
||||
func NewMflac256Decoder(data []byte) common.Decoder {
|
||||
return &Decoder{file: data, maskDetector: detectMflac256Mask, audioExt: "flac"}
|
||||
rawMetaExtra1 int
|
||||
rawMetaExtra2 int
|
||||
}
|
||||
|
||||
func NewMgg256Decoder(data []byte) common.Decoder {
|
||||
return &Decoder{file: data, maskDetector: detectMgg256Mask, audioExt: "ogg"}
|
||||
// Read implements io.Reader, offer the decrypted audio data.
|
||||
// Validate should call before Read to check if the file is valid.
|
||||
func (d *Decoder) Read(p []byte) (int, error) {
|
||||
n := len(p)
|
||||
if d.audioLen-d.offset <= 0 {
|
||||
return 0, io.EOF
|
||||
} else if d.audioLen-d.offset < n {
|
||||
n = d.audioLen - d.offset
|
||||
}
|
||||
m, err := d.r.Read(p[:n])
|
||||
if m == 0 {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
d.cipher.Decrypt(p[:m], d.offset)
|
||||
d.offset += m
|
||||
return m, err
|
||||
}
|
||||
|
||||
func (d *Decoder) Validate() error {
|
||||
if nil != d.mask {
|
||||
return nil
|
||||
func NewDecoder(r io.ReadSeeker) (*Decoder, error) {
|
||||
d := &Decoder{r: r}
|
||||
err := d.searchKey()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if nil != d.maskDetector {
|
||||
if err := d.validateKey(); err != nil {
|
||||
return err
|
||||
|
||||
if len(d.decodedKey) > 300 {
|
||||
d.cipher, err = NewRC4Cipher(d.decodedKey)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
var err error
|
||||
d.mask, err = d.maskDetector(d.file)
|
||||
return err
|
||||
} else if len(d.decodedKey) != 0 {
|
||||
d.cipher, err = NewMapCipher(d.decodedKey)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
} else {
|
||||
d.cipher = NewStaticCipher()
|
||||
}
|
||||
return errors.New("no mask or mask detector found")
|
||||
}
|
||||
|
||||
func (d *Decoder) validateKey() error {
|
||||
lenData := len(d.file)
|
||||
if lenData < 4 {
|
||||
return ErrQmcFileLength
|
||||
_, err = d.r.Seek(0, io.SeekStart)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
keyLen := binary.LittleEndian.Uint32(d.file[lenData-4:])
|
||||
if lenData < int(keyLen+4) {
|
||||
return ErrQmcFileLength
|
||||
return d, nil
|
||||
}
|
||||
|
||||
func (d *Decoder) Validate() error {
|
||||
buf := make([]byte, 16)
|
||||
if _, err := io.ReadFull(d.r, buf); err != nil {
|
||||
return err
|
||||
}
|
||||
var err error
|
||||
d.key, err = base64.StdEncoding.DecodeString(
|
||||
string(d.file[lenData-4-int(keyLen) : lenData-4]))
|
||||
_, err := d.r.Seek(0, io.SeekStart)
|
||||
if err != nil {
|
||||
return ErrQmcKeyDecodeFailed
|
||||
return err
|
||||
}
|
||||
|
||||
if len(d.key) != 272 {
|
||||
return ErrQmcKeyLength
|
||||
d.cipher.Decrypt(buf, 0)
|
||||
fileExt, ok := common.SniffAll(buf)
|
||||
if !ok {
|
||||
return errors.New("detect file type failed")
|
||||
}
|
||||
d.file = d.file[:lenData-4-int(keyLen)]
|
||||
d.fileExt = fileExt
|
||||
return nil
|
||||
}
|
||||
|
||||
func (d Decoder) GetFileExt() string {
|
||||
return d.fileExt
|
||||
}
|
||||
|
||||
func (d *Decoder) Decode() error {
|
||||
d.audio = d.mask.Decrypt(d.file)
|
||||
func (d *Decoder) searchKey() error {
|
||||
fileSizeM4, err := d.r.Seek(-4, io.SeekEnd)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
buf, err := io.ReadAll(io.LimitReader(d.r, 4))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if string(buf) == "QTag" {
|
||||
if err := d.readRawMetaQTag(); err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
size := binary.LittleEndian.Uint32(buf)
|
||||
if size < 0x300 && size != 0 {
|
||||
return d.readRawKey(int64(size))
|
||||
} else {
|
||||
// try to use default static cipher
|
||||
d.audioLen = int(fileSizeM4 + 4)
|
||||
return nil
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (d Decoder) GetCoverImage() []byte {
|
||||
func (d *Decoder) readRawKey(rawKeyLen int64) error {
|
||||
audioLen, err := d.r.Seek(-(4 + rawKeyLen), io.SeekEnd)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
d.audioLen = int(audioLen)
|
||||
|
||||
rawKeyData, err := io.ReadAll(io.LimitReader(d.r, rawKeyLen))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
d.decodedKey, err = DecryptKey(rawKeyData)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (d Decoder) GetAudioData() []byte {
|
||||
return d.audio
|
||||
func (d *Decoder) readRawMetaQTag() error {
|
||||
// get raw meta data len
|
||||
if _, err := d.r.Seek(-8, io.SeekEnd); err != nil {
|
||||
return err
|
||||
}
|
||||
buf, err := io.ReadAll(io.LimitReader(d.r, 4))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
rawMetaLen := int64(binary.BigEndian.Uint32(buf))
|
||||
|
||||
// read raw meta data
|
||||
audioLen, err := d.r.Seek(-(8 + rawMetaLen), io.SeekEnd)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
d.audioLen = int(audioLen)
|
||||
rawMetaData, err := io.ReadAll(io.LimitReader(d.r, rawMetaLen))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
items := strings.Split(string(rawMetaData), ",")
|
||||
if len(items) != 3 {
|
||||
return errors.New("invalid raw meta data")
|
||||
}
|
||||
|
||||
d.decodedKey, err = DecryptKey([]byte(items[0]))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
d.rawMetaExtra1, err = strconv.Atoi(items[1])
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
d.rawMetaExtra2, err = strconv.Atoi(items[2])
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (d Decoder) GetAudioExt() string {
|
||||
if d.audioExt != "" {
|
||||
return "." + d.audioExt
|
||||
//goland:noinspection SpellCheckingInspection
|
||||
func init() {
|
||||
supportedExts := []string{
|
||||
"qmc0", "qmc3", //QQ Music MP3
|
||||
"qmc2", "qmc4", "qmc6", "qmc8", //QQ Music M4A
|
||||
"qmcflac", //QQ Music FLAC
|
||||
"qmcogg", //QQ Music OGG
|
||||
|
||||
"tkm", //QQ Music Accompaniment M4A
|
||||
"bkcmp3", //Moo Music Mp3
|
||||
"bkcflac", //Moo Music Flac
|
||||
|
||||
"666c6163", //QQ Music Weiyun Flac
|
||||
"6d7033", //QQ Music Weiyun Mp3
|
||||
"6f6767", //QQ Music Weiyun Ogg
|
||||
"6d3461", //QQ Music Weiyun M4a
|
||||
"776176", //QQ Music Weiyun Wav
|
||||
|
||||
"mgg", "mgg1", //QQ Music New Ogg
|
||||
"mflac", "mflac0", //QQ Music New Flac
|
||||
}
|
||||
for _, ext := range supportedExts {
|
||||
common.RegisterDecoder(ext, false, newCompactDecoder)
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
func (d Decoder) GetMeta() common.Meta {
|
||||
return nil
|
||||
type compactDecoder struct {
|
||||
decoder *Decoder
|
||||
createErr error
|
||||
buf *bytes.Buffer
|
||||
}
|
||||
|
||||
func DecoderFuncWithExt(ext string) common.NewDecoderFunc {
|
||||
return func(file []byte) common.Decoder {
|
||||
return &Decoder{file: file, audioExt: ext, mask: getDefaultMask()}
|
||||
func newCompactDecoder(p []byte) common.Decoder {
|
||||
r := bytes.NewReader(p)
|
||||
d, err := NewDecoder(r)
|
||||
c := compactDecoder{
|
||||
decoder: d,
|
||||
createErr: err,
|
||||
}
|
||||
return &c
|
||||
}
|
||||
|
||||
//goland:noinspection SpellCheckingInspection
|
||||
func init() {
|
||||
common.RegisterDecoder("qmc0", false, DecoderFuncWithExt("mp3")) //QQ Music Mp3
|
||||
common.RegisterDecoder("qmc3", false, DecoderFuncWithExt("mp3")) //QQ Music Mp3
|
||||
func (c *compactDecoder) Validate() error {
|
||||
if c.createErr != nil {
|
||||
return c.createErr
|
||||
}
|
||||
return c.decoder.Validate()
|
||||
}
|
||||
|
||||
common.RegisterDecoder("qmc2", false, DecoderFuncWithExt("m4a")) //QQ Music M4A
|
||||
common.RegisterDecoder("qmc4", false, DecoderFuncWithExt("m4a")) //QQ Music M4A
|
||||
common.RegisterDecoder("qmc6", false, DecoderFuncWithExt("m4a")) //QQ Music M4A
|
||||
common.RegisterDecoder("qmc8", false, DecoderFuncWithExt("m4a")) //QQ Music M4A
|
||||
func (c *compactDecoder) Decode() error {
|
||||
if c.createErr != nil {
|
||||
return c.createErr
|
||||
}
|
||||
c.buf = bytes.NewBuffer(nil)
|
||||
_, err := io.Copy(c.buf, c.decoder)
|
||||
return err
|
||||
}
|
||||
|
||||
common.RegisterDecoder("qmcflac", false, DecoderFuncWithExt("flac")) //QQ Music Flac
|
||||
common.RegisterDecoder("qmcogg", false, DecoderFuncWithExt("ogg")) //QQ Music Ogg
|
||||
common.RegisterDecoder("tkm", false, DecoderFuncWithExt("m4a")) //QQ Music Accompaniment M4a
|
||||
func (c *compactDecoder) GetCoverImage() []byte {
|
||||
return nil
|
||||
}
|
||||
|
||||
common.RegisterDecoder("bkcmp3", false, DecoderFuncWithExt("mp3")) //Moo Music Mp3
|
||||
common.RegisterDecoder("bkcflac", false, DecoderFuncWithExt("flac")) //Moo Music Flac
|
||||
func (c *compactDecoder) GetAudioData() []byte {
|
||||
return c.buf.Bytes()
|
||||
}
|
||||
|
||||
common.RegisterDecoder("666c6163", false, DecoderFuncWithExt("flac")) //QQ Music Weiyun Flac
|
||||
common.RegisterDecoder("6d7033", false, DecoderFuncWithExt("mp3")) //QQ Music Weiyun Mp3
|
||||
common.RegisterDecoder("6f6767", false, DecoderFuncWithExt("ogg")) //QQ Music Weiyun Ogg
|
||||
common.RegisterDecoder("6d3461", false, DecoderFuncWithExt("m4a")) //QQ Music Weiyun M4a
|
||||
common.RegisterDecoder("776176", false, DecoderFuncWithExt("wav")) //QQ Music Weiyun Wav
|
||||
func (c *compactDecoder) GetAudioExt() string {
|
||||
if c.createErr != nil {
|
||||
return ""
|
||||
}
|
||||
return c.decoder.GetFileExt()
|
||||
}
|
||||
|
||||
common.RegisterDecoder("mgg", false, NewMgg256Decoder) //QQ Music New Ogg
|
||||
common.RegisterDecoder("mflac", false, NewMflac256Decoder) //QQ Music New Flac
|
||||
func (c *compactDecoder) GetMeta() common.Meta {
|
||||
return nil
|
||||
}
|
||||
|
||||
@ -0,0 +1,98 @@
|
||||
package qmc
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"io"
|
||||
"os"
|
||||
"reflect"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func loadTestDataQmcDecoder(filename string) ([]byte, []byte, error) {
|
||||
encBody, err := os.ReadFile(fmt.Sprintf("./testdata/%s_raw.bin", filename))
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
encSuffix, err := os.ReadFile(fmt.Sprintf("./testdata/%s_suffix.bin", filename))
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
target, err := os.ReadFile(fmt.Sprintf("./testdata/%s_target.bin", filename))
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
return bytes.Join([][]byte{encBody, encSuffix}, nil), target, nil
|
||||
|
||||
}
|
||||
func TestMflac0Decoder_Read(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
wantErr bool
|
||||
}{
|
||||
{"mflac0_rc4", false},
|
||||
{"mflac_map", false},
|
||||
{"mgg_map", false},
|
||||
{"qmc0_static", false},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
raw, target, err := loadTestDataQmcDecoder(tt.name)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
d, err := NewDecoder(bytes.NewReader(raw))
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
return
|
||||
}
|
||||
buf := make([]byte, len(target))
|
||||
if _, err := io.ReadFull(d, buf); err != nil {
|
||||
t.Errorf("read bytes from decoder error = %v", err)
|
||||
return
|
||||
}
|
||||
if !reflect.DeepEqual(buf, target) {
|
||||
t.Errorf("Decrypt() got = %v, want %v", buf[:32], target[:32])
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestMflac0Decoder_Validate(t *testing.T) {
|
||||
tests := []struct {
|
||||
name string
|
||||
fileExt string
|
||||
wantErr bool
|
||||
}{
|
||||
{"mflac0_rc4", ".flac", false},
|
||||
{"mflac_map", ".flac", false},
|
||||
{"mgg_map", ".ogg", false},
|
||||
{"qmc0_static", ".mp3", false},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
raw, _, err := loadTestDataQmcDecoder(tt.name)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
d, err := NewDecoder(bytes.NewReader(raw))
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
return
|
||||
}
|
||||
|
||||
if err := d.Validate(); err != nil {
|
||||
t.Errorf("read bytes from decoder error = %v", err)
|
||||
return
|
||||
}
|
||||
if tt.fileExt != d.GetFileExt() {
|
||||
t.Errorf("Decrypt() got = %v, want %v", d.GetFileExt(), tt.fileExt)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
@ -0,0 +1 @@
|
||||
dRzX3p5ZYqAlp7lLSs9Zr0rw1iEZy23bB670x4ch2w97x14Zwpk1UXbKU4C2sOS7uZ0NB5QM7ve9GnSrr2JHxP74hVNONwVV77CdOOVb807317KvtI5Yd6h08d0c5W88rdV46C235YGDjUSZj5314YTzy0b6vgh4102P7E273r911Nl464XV83Hr00rkAHkk791iMGSJH95GztN28u2Nv5s9Xx38V69o4a8aIXxbx0g1EM0623OEtbtO9zsqCJfj6MhU7T8iVS6M3q19xhq6707E6r7wzPO6Yp4BwBmgg4F95Lfl0vyF7YO6699tb5LMnr7iFx29o98hoh3O3Rd8h9Juu8P1wG7vdnO5YtRlykhUluYQblNn7XwjBJ53HAyKVraWN5dG7pv7OMl1s0RykPh0p23qfYzAAMkZ1M422pEd07TA9OCKD1iybYxWH06xj6A8mzmcnYGT9P1a5Ytg2EF5LG3IknL2r3AUz99Y751au6Cr401mfAWK68WyEBe5
|
||||
@ -0,0 +1 @@
|
||||
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
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -0,0 +1 @@
|
||||
yw7xWOyNQ8585Jwx3hjB49QLPKi38F89awnrQ0fq66NT9TDq1ppHNrFqhaDrU5AFk916D58I53h86304GqOFCCyFzBem68DqiXJ81bILEQwG3P3MOnoNzM820kNW9Lv9IJGNn9Xo497p82BLTm4hAX8JLBs0T2pilKvT429sK9jfg508GSk4d047Jxdz5Fou4aa33OkyFRBU3x430mgNBn04Lc9BzXUI2IGYXv3FGa9qE4Vb54kSjVv8ogbg47j3
|
||||
@ -0,0 +1 @@
|
||||
eXc3eFdPeU6+3f7GVeF35bMpIEIQj5JWOWt7G+jsR68Hx3BUFBavkTQ8dpPdP0XBIwPe+OfdsnTGVQqPyg3GCtQSrkgA0mwSQdr4DPzKLkEZFX+Cf1V6ChyipOuC6KT37eAxWMdV1UHf9/OCvydr1dc6SWK1ijRUcP6IAHQhiB+mZLay7XXrSPo32WjdBkn9c9sa2SLtI48atj5kfZ4oOq6QGeld2JA3Z+3wwCe6uTHthKaEHY8ufDYodEe3qqrjYpzkdx55pCtxCQa1JiNqFmJigWm4m3CDzhuJ7YqnjbD+mXxLi7BP1+z4L6nccE2h+DGHVqpGjR9+4LBpe4WHB4DrAzVp2qQRRQJxeHd1v88=
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
@ -0,0 +1 @@
|
||||
zGxNk54pKJ0hDkAo80wHE80ycSWQ7z4m4E846zVy2sqCn14F42Y5S7GqeR11WpOV75sDLbE5dFP992t88l0pHy1yAQ49YK6YX6c543drBYLo55Hc4Y0Fyic6LQPiGqu2bG31r8vaq9wS9v63kg0X5VbnOD6RhO4t0RRhk3ajrA7p0iIy027z0L70LZjtw6E18H0D41nz6ASTx71otdF9z1QNC0JmCl51xvnb39zPExEXyKkV47S6QsK5hFh884QJ
|
||||
@ -0,0 +1 @@
|
||||
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Reference in New Issue